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VM backup partially completed through VCB

Created: 22 Jun 2010 • Updated: 11 Sep 2010 | 4 comments
Satkay Satish's picture
This issue has been solved. See solution.

Hi,

Has anybody come across the below error for partially completed backups for VM through VCB?

ERR - Unable to retrieve volumes from virtual machine, error   = 1

Checked the VM for File system- All NTFS
No Un initialized disks.

Netbackup Version - 6.5.4
ESX - 3.5

Thanks in advance for all your valuable posts.

Thanks!
Satkay Satish

Comments 4 CommentsJump to latest comment

Stuart Green's picture

Run the File level backup and during this time watch the staging area for the VM's hard disks being mounted. If they are not being mounted there could be a compatibility problem.

Confirm the following:
VCB Framework 1.5 installed on the proxy
ESX 3.5 U2 or later installed - currently 3.5 U5.
All the VM storage is accessible/presented to the VCB Proxy server
VMware Tools installed in the VM's you are backing up - if installed also perform update to the latest build.
The hard disks in the Virtual Machine (Windows Guest OS I presume) are all NTFS - basic disks, no encryption exists on them.
There was a bug or gotcha with exclude lists on the Media Server that may well match mounted vmdk's and the contents file system.
You might want to get logs turned on and logging into these directories for better troubleshooting/status messages.

Tip: Get overview/document your NBU environment. Run 'nbsu' and review the output.

• If this provides help, please vote or mark appropriate solution.

Satkay Satish's picture

Hi Stuart,

Thanks for your post.

I worked out with my VMware guy and he found that there were messages in /var/log/vmware/hostd.log on the ESX complaning of VMDK file cannot be found.
This missing file is not part of VM as can be seen from VC and also the vmx file.

As per the VMware guy, the machine needs to be rebooted which would clear all.
Waiting for the machines to be rebooted. Will update the post of the outcome.

Thanks! smiley
Satkay Satish  ™

Stuart Green's picture

Good news.
I recommend the following tool also as a great utility to seeing your VM inventory under the hood and from a number of levels to help you troubleshoot or see the Health of your VM's

RVTools http://www.robware.net/

This tool helped me find a zombie vmdk file which might be what you just described. A dead orphaned vmdk file

Tip: Get overview/document your NBU environment. Run 'nbsu' and review the output.

• If this provides help, please vote or mark appropriate solution.

Satkay Satish's picture

We worked out with Symantec support and found that it was bug in the product.
http://seer.entsupport.symantec.com/docs/329053.htm

After patching the server to 6.5.6 the issue is now resolved and backups running fine. :)yes

Thanks!
Satkay Satish

SOLUTION